HW-155 LM2596 DC-DC Step-down Adjustable CC/CV Power Supply Module Converter LED driver

Features:
Fixed turn the lamp current to 0.1 times the value of the constant current (charge when used to identify whether the battery is full)
Increased input reverse polarity protection diode
Using dedicated reference IC, and high-precision sampling resistor, so that the constant current is more stable, (20 degrees to 100 degrees, the constant current 1A, when the temperature drift of less than 1%).
Particularly suitable for LED driver
High-power LED constant current drive
Lithium battery charger (including ferroelectric)
4V, 6V, 12V, 14V, 24V battery charger
Nickel cadmium, nickel metal hydride battery pack charger
Solar panels and wind turbines
Specifications:
Module Properties: non-isolated constant current and voltage module
Rectification: non-synchronous rectification
Input voltage: 7V-35V
Output voltage: 1.25V-30V
Output current: adjustable maximum 3A
Conversion efficiency: 92% (the highest)
Switching frequency: 150KHz
Output ripple: 50mV (max) 20M bandwidth
Load Regulation: ± 0.5%
Voltage Regulation: ± 2.5%
Operating Temperature: -40 ℃ to +85 ℃

Battery use:
Make sure of the voltage and current of the battery you need to charge
Adjust the constant voltage potentiometer to make the output voltage same to the charge voltage
Potentiometer Adjustment Direction: Clockwise (increase), counterclockwise (decrease)
Use the multimeter in 10A current scale to measure output short-circuit current, and adjust the current potentiometer to make sure the output current to the expected charging current value
The charge current of transfer lamp is default 0.1 times of the charging current (constant current value)
Connected to the battery and try to charging (for previous 5 steps,module input terminal is connected to power source, output load is NOT connected to batteries).

LED Constant Current Driver Use:
Make sure operating current and Max operating Voltage of the LED you need to drive.
Adjust the constant voltage potentiometer to make sure the output Voltage is up to LED Max operating Voltage.
Use the multimeter in 10A current scale to measure output short-circuit current, and adjust the current potentiometer. To make sure the output current to the expected LED operating current.
Join LED, test (For the above 3 steps, module input terminal is connected to power source, output load is NOT connected to LED).